XML 101 R51.htm IDEA: XBRL DOCUMENT v2.4.1.9
Certain Significant Estimates (Details Textual)
12 Months Ended
Dec. 27, 2014
Noncompete Agreements [Member]  
Valuation and Qualifying Accounts Disclosure [Line Items]  
Finite-Lived Intangible Asset, Useful Life 5 years
Maximum [Member] | Customer Lists [Member]  
Valuation and Qualifying Accounts Disclosure [Line Items]  
Finite-Lived Intangible Asset, Useful Life 13 years
Maximum [Member] | Patents [Member]  
Valuation and Qualifying Accounts Disclosure [Line Items]  
Finite-Lived Intangible Asset, Useful Life 9 years
Minimum [Member] | Customer Lists [Member]  
Valuation and Qualifying Accounts Disclosure [Line Items]  
Finite-Lived Intangible Asset, Useful Life 5 years
Minimum [Member] | Patents [Member]  
Valuation and Qualifying Accounts Disclosure [Line Items]  
Finite-Lived Intangible Asset, Useful Life 5 years